Jack plate bracket



FIG. 1 is a front elevational view of the jack plate bracket showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side left elevational view thereof, the right side view is a mirror image of the left side view;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in FIG. 3 represent an internal boundary of the design, with the line itself and the area within, forming no part of the claim. 

The ornamental design for a jack plate bracket, as shown and described. 